Hadith 8:250
Abu Hurairah (May Allah be pleased with him) reported:
The Messenger of Allah (ﷺ) said, "When any one of you is observing Saum (fasting) on a day, he should neither indulge in obscene language nor should he raise the voice; and if anyone reviles him or tries to quarrel with him he should say: 'I am observing fast."' [Al-Bukhari and Muslim] .
عن أبي هريرة رضي الله عنه قال: قال رسول الله صلى الله عليه وسلم: "إذا كان يوم صوم أحدكم فلا يرفث ولا يصخب، فإن سابه أحد أو قاتله، فليقل: إني صائم"