BUKHARI 6378:
from Um Sulaym —
that she said, "O Messenger of Allah ﷺ! Anas is your servant, so please invoke for Allah's blessing for him." The Prophet ﷺ said, "O Allah! Increase his wealth and offspring and bless (for him) whatever You give him."
البخاري ٦٣٧٨:
عن ام سليم —
أَنَّهَا قَالَتْ يَا رَسُولَ اللَّهِ أَنَسٌ خَادِمُكَ ادْعُ اللَّهَ لَهُ قَالَ اللَّهُمَّ أَكْثِرْ مَالَهُ وَوَلَدَهُ وَبَارِكْ لَهُ فِيمَا أَعْطَيْتَهُ وَعَنْ هِشَامِ بْنِ زَيْدٍ سَمِعْتُ أَنَسَ بْنَ مَالِكٍ مِثْلَهُ