Masruq reported,

We asked Abdullah about this verse, "And do not think of those who have been killed in the cause of Allah as dead. Rather, they are alive with their Lord, receiving provision" [Aal Imran 3:169].He said, "We have indeed asked about that, and he said, 'Their souls are inside green birds that have lanterns suspended from the Throne. They roam freely through Paradise wherever they wish, then return to those lanterns…'"

Azami 16408

Sahih

عن مسروق، قال

سألنا عبد الله عن هذه الآية: {ولإ تحسبن الذين قتلوا في سبيل الله أمواتا بل أحياء عند ربهم يرزقون} [آل عمران: ١٦٩] قال: أما إنا قد سألنا عن ذلك، فقال: أرواحهم في جوف طير خضر، لها قناديل معلقة بالعرش، تسرح من الجنة حيث شاءت، ثم تأوي إلى تلك القناديل…

الأعظمي 16408صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Description of Paradise and Hell and their inhabitants
Chapter
Characteristics of the people of Paradise
Section
Souls of the believers, from the martyrs and others, being like birds clinging to the trees of Paradise
Numbering
Jami al-Kamil 16408 (2nd edition)
Azami 16408