As it has been emphasized by Allah SWT in His words through Surah Al-Hujurat verse 10: "Indeed, the believers are brothers. So make peace (improve relations) between your two brothers and fear Allah that you may receive mercy." (QS. Al-Hujurat: 10) The above verse teaches its followers to live based on brotherhood and to be able to give goodness to each other. One of the goodness that can be given is in the form of prayer. Whether it is to fellow Muslims who are still alive or those who have passed away.

As explained in a hadith from Ubadah bin ash-Shamit, the Prophet Muhammad (peace be upon him) said: "Whoever prays for forgiveness for the believing men and believing women, Allah will write for him a reward equal to the number of believing men and believing women." (HR. Ath-Thabrani) That is why, during his lifetime, the Prophet and the messengers always prayed for the Muslim community. Because that prayer not only brings goodness to others, but also brings rewards for oneself.

The following is the reading of the prayer practiced by Prophet Nuh (as) for the Muslim community: Berikut adalah bacaan doa yang diamalkan oleh Nabi Nuh as untuk kaum muslimin: رَبِّ اغْفِرْ لِي وَلِوَالِدَيَّ وَلِمَن دَخَلَ بَيْتِيَ مُؤْمِنًا وَلِلْمُؤْمِنِينَ وَالْمُؤْمِنَاتِArtinya: "Ya Rabb, ampunilah aku, kedua orang tuaku dan siapapun yang memasuki rumahku dalam keadaan beriman. Serta orang yang beriman laki-laki dan perempuan." (QS. Nuh: 28) Then, Prophet Ibrahim (as) also recited the following prayer: Lalu, Nabi Ibrahim as juga memanjatkan doa berikut ini: رَبَّنَا اغْفِرْ لِي وَلِوَالِدَيَّ وَلِلْمُؤْمِنِينَ يَوْمَ يَقُومُ الْحِسَابُArtinya: "Wahai Tuhan kami, ampunilah aku dan kedua orang tuaku, serta semua orang yang beriman pada hari diadakannya perhitungan (hari Kiamat)." (QS. Ibrahim: 41)

This is explained clearly in a hadith from Abu Darda ra, the Prophet Muhammad pbuh said: "There is no Muslim servant who prays for his brother in secret except that the angels will say to you what is said." Not only that, prayers that are whispered are also very effective. As the Prophet Muhammad pbuh said: "The prayer of a Muslim intended for his brother in faith without showing it is accepted, above him there are angels who are assigned every time he prays for good for his brother in faith, then the angel says, 'May it be granted and to you as it is said'."