such acts. They would supplicate for the believing men and women, as Allah commanded, both the living and the dead—during funeral prayers, when visiting graves, and on other occasions. It has been reported from a number of the early Muslims: “Each time the Quran is completed, there is a supplication that is answered.” Thus, if a man supplicated after completing it for himself, his parents, his teachers, and other believing men and women, this fell within the scope of prescribed practice. The same applies to supplicating for them during the night prayer and on other occasions when supplications are answered.” 1.
Moreover, a Muslim’s supplication for his Muslim brother or brothers in their absence is answered. Indeed, Allah, Mighty and Majestic, has assigned an angel to stand at the supplicant’s head; whenever he supplicates for his brother’s good, the angel says, “Amen, and may you have the same.”
Muslim narrated in his Sahīh from Abū al-Dardā (may Allah be pleased with him) that he heard the Messenger of Allah (peace and blessings be upon him) say: “Whenever a Muslim servant supplicates for his brother in his absence, the angel says, ‘And may you have the same.’” 2. Another narration in Sahīh Muslim reports from Abū al-Dardā that the Messenger of Allah (peace and blessings be upon him) said: “A Muslim’s supplication for his brother in his absence is answered. At his head is an angel assigned to him; whenever he supplicates for his brother’s good, the assigned angel says, ‘Amen, and may you have the same.’” 3.
Al-Nawawī (may Allah have mercy on him) said in his commentary on this hadith: “This demonstrates the virtue of supplicating for one’s Muslim brother in his absence, and even if he supplicates for a group of Muslims