Hadithcore
Hadith #2302750
sahih· Al-Albani

Anas said, "I served the Prophet, (ﷺ), for ten years. He never said 'uff' to me and he never questioned me about anything I had not done, asking, 'Why didn't you do it?' or questioned me about something I had done, asking 'Why did you do that?'"

حَدَّثَنَا سُلَيْمَانُ بْنُ حَرْبٍ، قَالَ‏:‏ حَدَّثَنَا حَمَّادُ بْنُ زَيْدٍ، وَسُلَيْمَانُ بْنُ الْمُغِيرَةِ، عَنْ ثَابِتٍ، عَنْ أَنَسٍ قَالَ‏:‏ خَدَمْتُ النَّبِيَّ صلى الله عليه وسلم عَشْرَ سِنِينَ، فَمَا قَالَ لِي‏:‏ أُفٍّ، قَطُّ، وَمَا قَالَ لِي لِشَيْءٍ لَمْ أَفْعَلْهُ‏:‏ أَلاَ كُنْتَ فَعَلْتَهُ‏؟‏ وَلاَ لِشَيْءٍ فَعَلْتُهُ‏:‏ لِمَ فَعَلْتَهُ‏؟‏‏.‏

References1 variant
Arabic/English book reference
Book 14, Hadith 277