Fadalah ibn ‘Ubayd (radiyallahu ‘anhu) reports:...“When Rasulullah (sallallahu ‘alayhi wa sallam) would lead the Sahabah in Salah, some men would collapse among them during the Salah due to extreme hunger, they were the Ashabus Suffah. The Bedouins would say, ‘These people are mad/possessed’. When Rasulullah (sallallahu ‘alayhi wa sallam) completed the Salah, he turned to them and said:‘If you knew what [reward] was in store for you with Allah then you would love your hunger and need to be more intense.”...(Sunan Tirmidhi, Hadith: 2368. Declared authentic by Imam Tirmidhi and Imam Ibn Hibban, Al Ihsan, Hadith: 724)