وَعَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ
قَالَ: كُنْتُ أُصَلِّي وَالنَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَأَبُو بَكْرٍ وَعُمَرُ مَعَهُ فَلَمَّا جَلَسْتُ بَدَأْتُ بِالثَّنَاءِ عَلَى اللَّهِ تَعَالَى ثُمَّ الصَّلَاةُ عَلَى النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ثُمَّ دَعَوْتُ لِنَفْسِي فَقَالَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «سَلْ تعطه سل تعطه»
I was praying, and so was the Prophet (sallallahu alayhi wa sallam) accompanied by Abu Bakr and Umar When I sat I first extolled God’s praises then invoked blessings on the Prophet (sallallahu alayhi wa sallam), then made supplication for myself, and the Prophet (sallallahu alayhi wa sallam) said, “If you ask you will be given it, if you ask you will be given it.”
Mishkat al-Masabih 876, Book 5, Prayer, Hadith 354. 1 min read