Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) relates: I heard the Messenger of Allah (peace and blessings be upon him) saying, concerning this verse, "Allah keeps firm those who believe with the firm word in the life of this world and in the Hereafter": "The Hereafter here means the grave."
Imam al-Tabarani (may Allah have mercy on him) said: "Qabisah (may Allah have mercy on him) is alone in narrating this hadith from Musa bin Qays (may Allah have mercy on him) as marfu' (from the Prophet), and Uqbah (may Allah have mercy on him) is alone in narrating it from him, while Abu Nu'aym (may Allah have mercy on him) narrated it from Musa bin Qays (may Allah have mercy on him) as mawquf (stopping at the Companion)."