It wasnarrated that Ubayy bin Ka'b said:
"We were with the MessengerofAllah (ﷺ) and we all had a single focus, but when he passed awaywestarted to look here and there (i.e., have different interests)." (RU)
English reference (RU): Vol. 1, Book 6, Hadith 1633 (RU)
Arabic reference (RU): Book 6, Hadith 1702 (RU)