The Table Spread - 5:50 Or do they seek the laws of the time of ignorance? Can there be a better lawgiver than Allah for those who have firm faith based on knowledge?
The proof of everything that the believers practice in the name of religion is based on the Book of Allah:
The Table Spread/5:50 Or do they seek the laws of the time of ignorance? Can there be a better lawgiver than Allah for those who have firm faith based on knowledge?
The Table Spread/5:68 "Say, "People of the Book! You will have no basis until you apply the Torah and the Gospel and what has been sent down to you from your Lord."What has been sent down to you from your Lord increases the disbelief and disobedience of most of them. Do not grieve for the disbelieving people."

Originator/35:40 "Say, "Have you considered your partners whom you call besides Allah; show me what they have created in the earth?"Or do they have a partnership in the sky? Or have We given them a Book and they rely on a proof in it? Indeed, the wrong-doers give only deceitful promises to one another."

The Ornaments of Gold/43:20 "They even said, "If the Most Merciful had willed, we would not have served them". They have no knowledge of this. They are only guessing."

The Cattle/6:157 "Nor can you say, "If the Book had been sent down to us, we would have been on a more right path than them". There has come to you a proof from your Lord, a guidance and a mercy. Who is more unjust than he who denies the signs of Allah and turns away from them? We will punish those who turn away from Our Verses with the worst of torment for their turning away."

The Women/4:174 People! A proof has come to you from your Lord and We have sent down upon you a clear light.

The Kneeling/45:20 These are enlightening proofs for the people, a guide and mercy for a people who have firm faith.

The Stories/28:75 "We choose a witness from each community and say, "Bring your evidence."Then they will know that all truth belongs to Allah, and what they used to fabricate will leave them and disappear."