عن أبي هريرة رضي الله عنه مرفوعاً: «يَدخُلُ الجّنَّة أَقْوَام أَفئِدَتُهُم مِثل أًفئِدَة الطَّير».
[صحيح] - [رواه مسلم]
Abu Hurayrah (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: "Some people will enter Paradise whose hearts are like the hearts of birds."
Sahih/Authentic. - [Muslim]
The Prophet (may Allah's peace and blessings be upon him) gives us description of a group of the dwellers of Paradise that their hearts are delicate and (easily) frightened like birds. That is due to the fear of those believers of their Lord, just as birds are frequently frightened and fearful. Moreover, they are the most reliant people on Allah in seeking their needs, just as birds go out in the morning seeking their food.