What is the ruling on prostrating on something other than the ground?
Machine translationRead the Arabic original
Question:
This questioner says: If a person prostrates on a cap, is his prostration valid?
Answer:
Yes, his prostration is valid. Prostrating on a cap, on a turban, on the edge of his garment, or on whatever is there is fine. However, if there is no reason for doing so, it is better for him to place his forehead directly on the prayer mat. But if he needs protection from the place being hot due to the sun, for example, or if it contains thorns or pebbles, and he needs to place something under his forehead, there is no harm in that.
This questioner says: If a person prostrates on a cap, is his prostration valid?
Answer:
Yes, his prostration is valid. Prostrating on a cap, on a turban, on the edge of his garment, or on whatever is there is fine. However, if there is no reason for doing so, it is better for him to place his forehead directly on the prayer mat. But if he needs protection from the place being hot due to the sun, for example, or if it contains thorns or pebbles, and he needs to place something under his forehead, there is no harm in that.
Source
قناة «العلامة الدكتور صالح الفوزان»، ما حكم السجود على غير الأرض؟ للشيخ الفوزان — youtube.com
The Arabic text is a machine transcription of the audio recording.