السلام عليكم ورحمة الله وبركاته أحسن الله إليكم شيخنا If one prays on rocks and there are gaps between the rocks, is his sujud valid? Some of his skin do not press as there are gaps between the rocks. Should be repeat his Salah if he ignorant if it nullified the salah? جزاكم الله خيراً

Ustadh AbdulAziz al-Haqqan

This seems to me as waswas and if there were actual spaces they would be tiny. So, the salah is valid.