Abu Hassan says that a man asked Sayyiduna Ibn Abbas (may Allah be pleased with them): O Abu al-Abbas! What is the reality of this fatwa that has become very famous among the people, that whoever performs Tawaf of the House of Allah becomes lawful (halal)? He replied: This is the Sunnah of your Prophet (peace and blessings be upon him), even if it is unpleasant to you.
Hadith Referenceمسند احمد / ومن مسند بني هاشم / 2539