´It was narrated that Abu Hurairah said:` "The Messenger of Allah (ﷺ) used to pray until he developed fissures in his feet."
Related hadith on this topic
Explanation & Benefits
Hafiz Muhammad Ameen
1646. Commentary: The point of bursting after thinking, that is, it was bound to happen eventually, but there was never any sense of laziness found in the Prophet sallallahu alayhi wa sallam.
Source: Sunan Nasa'i: Translation and Benefits by Shaykh Hafiz Muhammad Amin Hafizullah, Page: 1646