It is narrated from Sayyiduna Hudhayfah (may Allah be pleased with him), he says: I asked the Messenger of Allah (peace and blessings be upon him) about every single issue, until I even asked about what is the ruling on removing or cleaning pebbles from the place of prostration during prayer? So the Prophet (peace and blessings be upon him) said: You may remove them once, or it is better to just leave them as they are.
Hadith Referenceالفتح الربانی / أبواب فى فضائل بعض الصحابة الكرام / 11675
Hadith Gradingمحدثین:صحیح
Hadith Takhrij«حديث صحيح لكن من حديث ابي ذر الغفاري، اخرجه ابن ابي شيبة: 1/ 411، (انظر مسند أحمد ترقيم الرسالة: 23664 ترقیم بيت الأفكار الدولية: 23664»