Hadith 8:3206
Abu Bakr narrated to us, he said: Abu Usama narrated to us, he said: I heard Sufyan being asked about someone who embraced Islam, then performed Hajj, then apostatized, then returned to Islam: Is Hajj obligatory upon him, or does that Hajj suffice him? He said: When he apostatized, disbelief demolished everything that was before it, so he must perform Hajj, and that [previous Hajj] is not counted.
حدثنا أبو بكر قال نا أبو أسامة قال سمعت سفيان سئل عن من أسلم فحج ثم ارتد ثم رجع إلى الإسلام وجب عليه الحج أم تجزئه تلك الحجة قال إذا ارتد هدم الكفر كل شيء كان قبله فعليه أن يحج ولا يعتد بذلك