REWARD FOR OFFERING A SUPPLICATION UPON THE PROPHET, praise and peace be upon him H 1053 "When you hear the call to prayer, repeat what the caller to prayer says, then supplicate for the blessings of Allah upon me, because whosoever supplicates for the blessings of Allah upon me, Allah sends ten blessings upon him. Then, supplicate to Allah for the rank of 'wasila' (intercession) for me which is a rank in Paradise reserved for only one of the worshipers of Allah and I hope that I shall be that person. For those who supplicate for the 'wasila' (intercession) for me it becomes incumbent upon me to intercede for them." R 1053 Muslim with a chain up to Abdullah the son of Amr the son of Al 'As who related that he heard the Messenger of Allah, praise and peace be upon him, say this.
1037- وعن عبدِ الله بن عمرو بن العاص رضي الله عنهما : أنّه سمع رسول الله صلى الله عليه وآله وسلم ، يقول: "إِذَا سَمِعْتُمُ النداء فَقُولُوا مِثْلَ مَا يَقُولُ ، ثُمَّ صَلُّوا عَلَيَّ ؛ فَإنَّه مَنْ صَلَّى عَلَيَّ صَلاَةً صَلَّى اللهُ عَلَيْهِ بِهَا عَشْراً ، ثُمَّ سَلُوا اللهَ لِيَ الوَسِيلَةَ ؛ فَإنَّهَا مَنْزِلَةٌ في الجَنَّةِ لاَ تَنْبَغِي إِلاَّ لِعَبْدٍ مِنْ عِبَادِ اللهِ وَأرْجُو أنْ أكونَ أنَا هُوَ ، فَمَنْ سَألَ لِيَ الوَسِيلَةَ حَلَّتْ لَهُ الشَّفَاعَةُ" رواه مسلم .