The Prophet ﷺ said, "People will enter Paradise whose hearts are like the hearts of birds."
عن النبي ﷺ قال: يدخل الجنة أقوام أفئدتهم مثل أفئدة الطير.
Muslim narrated it in "Paradise, its Bliss, and its People" (2840), from Hajjaj bin Shayr, who said, Abu Nadr Hashim bin Qasim Laythi told us, who said, Ibrahim, meaning Ibn Saad, told us, who said, my father told me, from Abu Salama, from Abu Hurairah, and he related it.