"The Messenger of Allah traveled during Ramadan and fasted until he reached 'Usfan. Then he called for a vessel and drank during the day when the prople could see him, then he did not fast." (Using translation from Nasāʾī 2291)
«سَافَرَ رَسُولُ اللهِ ﷺ فِي رَمَضَانَ فَصَامَ حَتَّى بَلَغَ عُسْفَانَ ثُمَّ دَعَا بِإِنَاءٍ فَشَرِبَ نَهَارًا يَرَاهُ النَّاسُ ثُمَّ أَفْطَرَ»
Messenger of Allah ﷺ fasted and broke the fast, so he who wished fasted and he who wished to break it broke it.
سَافَرَ رَسُولُ اللَّهِ ﷺ فِي رَمَضَانَ فَصَامَ حَتَّى بَلَغَ عُسْفَانَ ثُمَّ دَعَا بِإِنَاءٍ فِيهِ شَرَابٌ فَشَرِبَهُ نَهَارًا لِيَرَاهُ النَّاسُ ثُمَّ أَفْطَرَ حَتَّى دَخَلَ مَكَّةَ قَالَ ابْنُ عَبَّاسٍ ؓ فَصَامَ رَسُولُ اللَّهِ ﷺ وَأَفْطَرَ فَمَنْ شَاءَ صَامَ وَمَنْ شَاءَ أَفْطَرَ
"The Messenger of Allah traveled during Ramadan and fasted until he reached 'Usfan. Then he called for a vessel and drank during the day when the prople could see him, then he did not fast."
سَافَرَ رَسُولُ اللَّهِ ﷺ فِي رَمَضَانَ فَصَامَ حَتَّى بَلَغَ عُسْفَانَ ثُمَّ دَعَا بِإِنَاءٍ فَشَرِبَ نَهَارًا يَرَاهُ النَّاسُ ثُمَّ أَفْطَرَ
"The Messenger of Allah traveled and fasted until he reached 'Usfan, then he called for a cup and drank durink the day when the people could see him. Hen he did not fast until he reached Makkah, and he conquered Makkah during Ramadan." Ibn 'Abbas said: "And the Messenger of Allah fasted until he reach Makkah, and he conquered Makkah during Ramadan." Ibn 'Abbas said: "And the Messenger of Allah fasted and broke his fast while traveling, so whoever wishes may fast, and whoever wishes may not fast."
سَافَرَ رَسُولُ اللَّهِ ﷺ فَصَامَ حَتَّى بَلَغَ عُسْفَانَ ثُمَّ دَعَا بِإِنَاءٍ فَشَرِبَ نَهَارًا لِيَرَاهُ النَّاسُ ثُمَّ أَفْطَرَ حَتَّى دَخَلَ مَكَّةَ فَافْتَتَحَ مَكَّةَ فِي رَمَضَانَ قَالَ ابْنُ عَبَّاسٍ فَصَامَ رَسُولُ اللَّهِ ﷺ فِي السَّفَرِ وَأَفْطَرَ فَمَنْ شَاءَ صَامَ وَمَنْ شَاءَ أَفْطَرَ