Sahih Muslim Book - 44, Hadith - 6375

وحَدَّثَنِي زُهَيْرُ بْنُ حَرْبٍ ، حَدَّثَنَا هَاشِمُ بْنُ الْقَاسِمِ ، حَدَّثَنَا سُلَيْمَانُ ، عَنْ ثَابِتٍ ، عَنْ أَنَسٍ ، قَالَ : دَخَلَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَلَيْنَا ، وَمَا هُوَ إِلاَّ أَنَا وَأُمِّي وَأُمُّ حَرَامٍ ، خَالَتِي . فَقَالَتْ أُمِّي : يَا رَسُولَ اللهِ ، خُوَيْدِمُكَ ، ادْعُ اللَّهَ لَهُ ، قَالَ فَدَعَا لِي بِكُلِّ خَيْرٍ ، وَكَانَ فِي آخِرِ مَا دَعَا لِي بِهِ أَنْ قَالَ : اللَّهُمَّ أَكْثِرْ مَالَهُ وَوَلَدَهُ ، وَبَارِكْ لَهُ فِيهِ.

It was narrated that Anas said: "The Prophet (s.a.w) entered upon us, and there was no one there but myself, my mother and Umm Haram, who was my maternal aunt. My mother said: 'O Messenger of Allah, here is your little servant, pray to Allah for him.' He prayed for all goodness for me, and at the end of his supplication he said: 'O Allah, increase his wealth and his offspring, and bless them for him.'"