Sahih al-Bukhari 6911
Narrated `Abdul-`Aziz:
Anas said, "When Allah's Messenger (ﷺ) arrived at Medina, Abu Talha took hold of my hand and brought 
me to Allah's Messenger (ﷺ) and said, "O Allah's Messenger (ﷺ)! Anas is an intelligent boy, so let him serve you." 
Anas added, "So I served the Prophet (ﷺ) L at home and on journeys; by Allah, he never said to me for 
anything which I did: Why have you done this like this or, for anything which I did not do: 'Why have 
you not done this like this?"
حَدَّثَنِي عَمْرُو بْنُ زُرَارَةَ، أَخْبَرَنَا إِسْمَاعِيلُ بْنُ إِبْرَاهِيمَ، عَنْ عَبْدِ الْعَزِيزِ، عَنْ أَنَسٍ، قَالَ لَمَّا قَدِمَ رَسُولُ اللَّهِ صلى الله عليه وسلم الْمَدِينَةَ أَخَذَ أَبُو طَلْحَةَ بِيَدِي فَانْطَلَقَ بِي إِلَى رَسُولِ اللَّهِ صلى الله عليه وسلم فَقَالَ يَا رَسُولَ اللَّهِ إِنَّ أَنَسًا غُلاَمٌ كَيِّسٌ فَلْيَخْدُمْكَ‏.‏ قَالَ فَخَدَمْتُهُ فِي الْحَضَرِ وَالسَّفَرِ، فَوَاللَّهِ مَا قَالَ لِي لِشَىْءٍ صَنَعْتُهُ، لِمَ صَنَعْتَ هَذَا هَكَذَا وَلاَ لِشَىْءٍ لَمْ أَصْنَعْهُ لِمَ لَمْ تَصْنَعْ هَذَا هَكَذَا