Silsilah as-Sahihah 386 — Means of entering Paradise and avoiding Hell

Sayyiduna Abu Dharr (may Allah be pleased with him) says: We left the Messenger of Allah (peace and blessings of Allah be upon him), but (during his lifetime) whenever a bird fluttered its wings in the sky, the Prophet (peace and blessings of Allah be upon him) would derive some knowledge for us from it. The Prophet (peace and blessings of Allah be upon him) said: "There is no deed left that brings one closer to Paradise and distances one from Hell, except that its explanation has already been made clear to you."