When the Prophet ﷺ entered upon me, he would ask: Do you have food ? When we said: No, he would say: I am fasting. Waki' added in his version: Another day when he entered upon us, we said: Messenger of Allah, some pudding (hair) has been presented to us and we have retained it for you. He said: Bring it to me. Talhah said: He fasted in the morning, but broke his fast (that day).  

كَانَ رَسُولُ اللَّهِ ﷺ إِذَا دَخَلَ عَلَىَّ قَالَ هَلْ عِنْدَكُمْ طَعَامٌ فَإِذَا قُلْنَا لاَ قَالَ إِنِّي صَائِمٌ زَادَ وَكِيعٌ فَدَخَلَ عَلَيْنَا يَوْمًا آخَرَ فَقُلْنَا يَا رَسُولَ اللَّهِ أُهْدِيَ لَنَا حَيْسٌ فَحَبَسْنَاهُ لَكَ فَقَالَ أَدْنِيهِ قَالَ طَلْحَةُ فَأَصْبَحَ صَائِمًا وَأَفْطَرَ  

On the days of the conquest of Mecca, when Mecca was captured, Fatimah came and sat on the left side of the Messenger of Allah ﷺ, and Umm Hani was on his right side. A slave-girl brought a vessel which contained some drink; she gave it to him and he drank of it. He then gave it to Umm Hani who drank of it. She said: Messenger of Allah, I have broken my fast; I was fasting. He said to her: Were you making atonement for something? She replied: No. He said: Then it does not harm you if it was voluntary (fast).  

لَمَّا كَانَ يَوْمُ الْفَتْحِ فَتْحِ مَكَّةَ جَاءَتْ فَاطِمَةُ فَجَلَسَتْ عَنْ يَسَارِ رَسُولِ اللَّهِ ﷺ وَأُمُّ هَانِئٍ عَنْ يَمِينِهِ قَالَتْ فَجَاءَتِ الْوَلِيدَةُ بِإِنَاءٍ فِيهِ شَرَابٌ فَنَاوَلَتْهُ فَشَرِبَ مِنْهُ ثُمَّ نَاوَلَهُ أُمَّ هَانِئٍ فَشَرِبَتْ مِنْهُ فَقَالَتْ يَا رَسُولَ اللَّهِ لَقَدْ أَفْطَرْتُ وَكُنْتُ صَائِمَةً فَقَالَ لَهَا أَكُنْتِ تَقْضِينَ شَيْئًا قَالَتْ لاَ قَالَ فَلاَ يَضُرُّكِ إِنْ كَانَ تَطَوُّعًا