Anas said, "I was serving the Messenger of Allah ﷺ one day. When I thought I had finished serving him, I said, 'The Prophet ﷺ is having a midday nap.' So I left him and there were some children playing. I stood looking at them and their game. The Prophet ﷺ came out, and came up to them and greeted them. Then he called me and sent me to get something he needed. He remained in the shade until I came back to him. I was late for my mother and she and he asked, 'What kept you?' I replied, The Prophet ﷺ sent me for something he needed.' 'What was it?' she asked. I replied, 'It is a secret of the Prophet, may Allah bless him and grant him peace.' She said, Keep the secret of the Messenger of Allah, may Allah bless him and grant him peace.' I did not tell anyone that secret. If I had told it, I would have told it to her.'"

عَنْ أَنَسٍ خَدَمْتُ رَسُولَ اللهِ ﷺ يَوْمًا حَتَّى إِذَا رَأَيْتُ أَنِّي قَدْ فَرَغْتُ مِنْ خِدْمَتِهِ قُلْتُ يَقِيلُ النَّبِيُّ ﷺ فَخَرَجْتُ مِنْ عِنْدِهِ فَإِذَا غِلْمَةٌ يَلْعَبُونَ فَقُمْتُ أَنْظُرُ إِلَيْهِمْ إِلَى لَعِبِهِمْ فَجَاءَ النَّبِيُّ ﷺ فَانْتَهَى إِلَيْهِمْ فَسَلَّمَ عَلَيْهِمْ ثُمَّ دَعَانِي فَبَعَثَنِي إِلَى حَاجَةٍ فَكَانَ فِي فَيْءٍ حَتَّى أَتَيْتُهُ وَأَبْطَأْتُ عَلَى أُمِّي فَقَالَتْ مَا حَبَسَكَ؟ قُلْتُ بَعَثَنِي النَّبِيُّ ﷺ إِلَى حَاجَةٍ قَالَتْ مَا هِيَ؟ قُلْتُ إِنَّهُ سِرٌّ لِلنَّبِيِّ ﷺ فَقَالَتِ احْفَظْ عَلَى رَسُولِ اللهِ ﷺ سِرَّهُ فَمَا حَدَّثْتُ بِتِلْكَ الْحَاجَةِ أَحَدًا مِنَ الْخَلْقِ فَلَوْ كُنْتُ مُحَدِّثًا حَدَّثْتُكَ بِهَا