11. What is the supplications, invoked for one's spouses and children?

السلام عليكم ورحمة الله وبركاتة      

ﺑِﺴْـــــــﻢِﷲِﺍﻟﺮَّﺣْﻤَﻦِﺍلرَّﺣِﻴﻢ

Answer:

"Our Lord, grant us from among our wives and offspring comfort to our eyes and make us a leader [i.e., example] for the righteous." [25:74]

وَٱلَّذِينَ يَقُولُونَ رَبَّنَا هَبْ لَنَا مِنْ أَزْوَٰجِنَا وَذُرِّيَّـٰتِنَا قُرَّةَ أَعْيُنٍۢ وَٱجْعَلْنَا لِلْمُتَّقِينَ إِمَامًا

Explanation:

The righteous servants of Allah when they hear the verses of their Lord, do not fall at them as deaf and blind ones.

They pay attention to them like sober and sensible persons, and act upon them.

Allah further says they not only submit themselves to the way of Allah, but also take efforts to improve their spouse and offspring, to follow the right path. They were so concerned about their family's faith in this world and the salvation in the Hereafter.

In Arabic language, there is an expression of "warm eyes" which a man experiances during sadness, sorrow, calamity, depression and pain. When a man is happy, healthy and peaceful his eyes become cool.

Allah says that the wealth and children are the trails for a man. When a man has righteous  spouse and children that is a great gift for him from Allah.

If a man with islamic faith had a disbeliever father, son or brother he knew that if any of their loved ones die they will go to Hell. He could not be in peace knowing that his loved one was in the Fire. This is what Allah referred to in this ayath.

A righteous man as he achieved good, want to call others also to goodness. He set right his household - the spouse and children with his faith and prayer. And also like them to be Imams.

They wanted their worship to be connected to the worship of their children and offspring, and their guidance to go beyond themselves and benefit others. 

الحمدلله