Imam Ja‘far al-Ṣadiq (as): Regarding the verse: "…that He might test you as to which of you is best in deed." Imam al-Sadiq (as) said: 'It does not mean those with the most deeds, rather it means those with the most valid deeds, and the validity of deeds lies in one's fear of Allah, sincere intention and righteousness.' al-Kāfī