وعنه قال: ذكر رجل لرسول الله صلى الله عليه وسلم أنه يُخدع في البيوع فقال رسول الله صلى الله عليه وسلم: "من بايعت؟ فقل : لا خلابة" ((متفق عليه)). "الخِلابة" بخاء معجمة مكسورة، وباء موحدة: وهي الخديعة.
Ibn 'Umar (May Allah be pleased with them) said:
A man mentioned to the Messenger of Allah (ﷺ) that he was often deceived in dealings. The Messenger of Allah (ﷺ) said to him, "When you enter into a transaction you should say: "There should be no deception."'
[Al-Bukhari and Muslim].
Reported by Al-Bukhari (No. 2117, 2407, 2414, 6964), Muslim (No. 1533a, 1533b), Abu Dawud (No. 3500), Malik (No. 1385) and Ahmad (No. 5148, 5258, 5699). Cited in Riyad as-Salihin (No. 1582).