Abu al-Haytham (may Allah have mercy on him) said: It was said to Sayyiduna Uqbah bin Amir (may Allah be pleased with him): We have a neighbour who drinks wine and does such-and-such. He said: I heard the Prophet (peace and blessings be upon him) say: "Whoever sees something of another that ought to be concealed and conceals it, it is as if he has brought a girl buried alive back to life from her grave."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الأشربة والحد فيها / 17609