What prompted him to do this? He said: He wanted that his Ummah should not be put to (unnecessary) hardship.
Sahih Muslim Book 6, Hadith 61
← Previous Hadith The Messenger of Allah (ﷺ) observed the noon and afternoon prayers together in Medina without being in a state of fear or in a state of journey. (Abu Zubair said: I asked Sa'id hardship.)

Sahih Muslim Book 6, Hadith 60 Next Hadith → We set out with the Messenger of Allah (ﷺ) on the Tabuk expedition, and he observed the noon and afternoon prayers together and the sunset and 'Isha' prayers together.

Sahih Muslim Book 6, Hadith 62