Sayyiduna Umar (may Allah be pleased with him) said: "Protect yourselves from destruction regarding the verse of stoning, lest someone should say, 'We do not find mention of two punishments in the Book of Allah.' I have seen the Prophet (peace and blessings of Allah be upon him) carrying out the punishment of stoning, and we ourselves have also carried out this punishment."
Hadith Referenceمسند احمد / مسند الخلفاء الراشدين / 302
Hadith Gradingحکم دارالسلام:صحيح، سعيد بن المسيب لم يسمع من عمر، خ: 2462، م :1691