Prayer is Not Accepted
Imam Ja’far as-Sadiq (a.s.) said,

“Allah will not accept the Namaz of the person who stares angrily at his parents. Even though they (parents) may be unjust.”

A Young man is interceeded by the Holy Prophet (s.a.w.)
A young man was on his deathbed when the Holy Prophet (s.a.w.s.) came, sat near him, and told him to recite two kalimas (Shahadatain). But the youth could not speak. The Holy Prophet (s.a.w.s.) enquired if his mother was present? A woman sitting near his head said, “Yes, I am his mother.”

The Holy Prophet (s.a.w.s.) asked, “Are your displeased with him?”

‘Yes, O Prophet (s.a.w.s.), we have not spoken to each other since the last six years.’

The Holy Prophet (s.a.w.s.) asked this woman to forgive her son. Thus at the Prophet’s instance she forgave his mistakes and was reconciled. At once the young man was able to recite the Kalima-e-Shahadat.

The Holy Prophet (s.a.w.s.) asked him,

“What do you see, at this moment.” “ O Prophet of Allah a dark and smelly man has got hold of me and is not leaving me.”

The Holy Prophet (s.a.w.s.) told him to recite the following dua,

“Ya man Yaqbalul yaseera wa y’afo ‘Anil Katheera Iqbal minnil Yaseera Wa ‘Aafo ‘Annil Katheera.”

Then asked, “Now what do you see?” He replied, “A fair complexioned man, handsome and fragrant, is moving towards me.”

The Holy Prophet said, “Keep repeating this dua.” When the youth repeated this dua he said “O Prophet of Allah (s.a.w.s.) both of them have disappeared from my sight.” After this the face of the Holy Prophet (s.a.w.s.) was illuminated with joy. He said, “O Allah forgive the sins of this young man.” Then the youth passed away.

(Behaarul Anwaar)

This tradition shows how difficult are the last moments of the Aaq-e-Waledain. He leaves this world in disbelief and remains, forever, in Divine punishment. The tutor of Kalima for this young man was the Holy Prophet (s.a.w.s.). In spite of this his tongue did not move till his mother forgive him. The blessings of the Holy Prophet (s.a.w.s.) and the forgiveness of his mother brought salvation for this youth

What is Aaq-e-Waledain?
Allama Majlisi (r.a.) writes in his commentary on Al Kafi:

Aaq-e-Waledain means that the son or the daughter cause disrespect to parents by speech or actions. Or they do not obey them in matters which are within reason and matters which are not in any way against religion.

Aaq-e-Waledain is absolutely Haraam. The books of traditions of both the Shias as well as the Sunnis validate this fact.

To look at the parents with anger is Aaq: To cause unhappiness to the parents results in Aaq. It is Haraam to take any step, which one is sure, will displease the parents.

Benevolence to Parents is Wajib
The verses of the Quran as well as the traditions of the infallible Imams (a.s.) not only prohibit displeasing and angering the parents, but also stress that benevolence towards them is Wajib.

A few examples of the Quranic Ayats are presented for the readers:

1) “And We have enjoined on man goodness to his parents.”

(Surah Ankaboot 29:8)

2) “Be grateful to Me and both your parents...”

(Surah Luqman 31:14)

The above verse is specially worth noting for the fact that Allah has mentioned together gratefulness towards Himself and to the parents. Certainly thankfulness to Allah is Wajib, and in the same way it is Wajib for the children to be thankful to their parents.

3) “And your Lord has commanded that you shall not serve (any) but Him, and goodness to your parents. If either or both of them reach old age with you, say not to them (so much as) “Uff” nor chide them, and speak to them a generous word. And make yourself submissively gentle to them with compassion, and say: O my Lord! Have compassion on them, as they brought me up (when I was) little.

(Surah Bani Israel 17:23-24)

In this Ayat Allah has mentioned goodness to parents. In the same sentence He exhorts about service to Him. As service to Allah is Wajib, benevolence to parent is Wajib too.

When the Imam (a.s.) was asked to explain the meaning of the term “Bil Waledaine Ehsana” (and goodness to your parents), he said,

“Be good to your parents and if they are in need of something, procure it for them before they ask for it.”

Then the meaning of the words, “Taqullahuma Qualan Kareema” (speak to them a generous word) was explained by the Imam (a.s.)

“If the parents beat you, say ‘May Allah forgive you’. The phrase ‘Wakhfiz Lahuma’ (and make yourself submissively gentle to them) is elaborated by the Imam (a.s.):

“Do not look at them with distaste. Do not raise your voice above theirs. When you walk with them do not precede them. When you go to a gathering, do not sit before they do. Never keep your hand above theirs (while giving them something).”

Service to Parents is Better Than Jehad
Imam Ja’far as-Sadiq (a.s.) narrates that a young man presented himself to the Holy Prophet (s.a.w.s.) and said that he wanted to participate in Jehad. The Holy Prophet (s.a.w.s.) told him:

“Certainly, go for Jehad in the way of Allah. If your are killed you will be alive near Allah and be provided sustenance from Him. The recompense for your sacrifice would be with Allah. If you return alive your sins would be washed off as if your were a newborn child.”

This man said: “O Prophet of Allah, my parents are alive and they are aged and have great expectations from me. They do not like me to be away from them.”

The Holy Prophet (s.a.w.s.) said:

“If that is so, then stay behind to serve your parents. By Allah in whose hands is my life, to serve parents for a day and night is equal to a year of Jehad.”

Another tradition from Holy Prophet (s.a.w.s.) says:

“Acquire your place in Heaven by serving your parents. If you are guilty of ‘Aaq’ then make Hell your abode.