Sayyiduna Abu Sa‘id Khudri (may Allah be pleased with him) narrates that the Noble Prophet (peace and blessings be upon him) said: When the people of Paradise will enter Paradise and the people of Hell will enter Hell, Allah the Pure will say: Take out from Hell anyone who has faith equal to a mustard seed in his heart. Then (such people) will be taken out from Hell, and they will have become black like charcoal. Then they will be thrown into the river of life or the water of rain. (Here the narrator was in doubt as to which word was used.) At that time, they will grow like seeds grow on the bank of a river. Have you not seen that a seed comes out yellowish, twisted and intertwined?
Hadith Referenceاللؤلؤ والمرجان / كتاب الايمان / 116
Hadith Gradingمحدثین:«صحیح»
Hadith Takhrij«صحیح، أخرجه البخاري في 2 كتاب الإيمان: 15 باب تفاضل أهل الإيمان في الأعمال»