God supported Prophet Muhammed (pbuh) with many miracles and evidence that proved that he is truly the prophet sent by God Almighty and as well the holy Quran is the revealed book sent to him which was not authored by any man but Allah (SWT). These are some of the evidence and prove:

In Quran ( 23:12-14)
”We created man from an extract of clay. Then We made him as a drop in a place of settlement, firmly fixed. Then We made the drop into an alaqah (leech, suspended thing, and blood clot), then We made the alaqah into a mudghah (chewed substance)…”

In comparing a leech to an embryo in the alaqah stage. The embryo at this stage obtains nourishment from the blood of the mother, similar to the leech, which feeds on the blood of others.

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