Abu Hurairah (May Allah be pleased with him) said:
The Messenger of Allah (ﷺ) said, "Angels do not accompany the travellers who have with them a dog or a bell."[Muslim]. (JA)
App reference (JA): Book 18, Hadith 180 (JA)
Arabic/English book reference (JA): Book 18, Hadith 1690 (JA)