Ibn 'Abbas (May Allah be pleased with them) reported:
It was the practice of the Messenger of Allah ﷺ to not to omit fast on 'bright days' whether he was staying at a place or on a journey.

[An-Nasa'i].

وعن ابن عباس، رضي الله عنهما، قال: كان رسول الله ﷺ "لا يفطر أيام البيض في حضر ولا سفر" ((رواه النسائي بإسناد حسن)).