The Prophet (Sallallähu alaihi wa sallam) said: “A day spent in the Path of Allah is better than a thousand other days”. (Nasai)

The Prophet (Sallallähu alaihi wa sallam) said: “To be in the Path of Allah, for a short while, is better than worshipping on the night of Al-Qadr in front of Hajaril-Aswad (the Black Stone)”. (Ibne-Hibban)

The Prophet (Sallallähu alaihi wa sallam) said: “He who suffers a headache in the Path of Allah, and hopes for a reward, then all his past sins are forgiven”. (Tabarani, Majma-‘uz-Zawaid)