Mukhtasar Bukhari (Abridged) 1228 — One who does not join jihad due

Narrated Anas bin Malik (may Allah be pleased with him): When we returned from the Battle of Tabuk with the Prophet (peace and blessings of Allah be upon him), he said: "Some people have remained behind in Madinah, but there is no mountain pass or valley which we crossed except that they were with us (in reward). They were held back by a (valid) excuse."