When the CJI said courts prima facie presume a law enacted by Parliament to be valid, Sibal said Waqf Amendment Act was discriminatory as it had singled out the Muslim community by mandating that a waqif has to be a practising Muslim for five years to be entitled to donate his properties for waqf. “Has any other religious denomination been mandated by law to ask the same question to anyone making an endowment for charitable purposes?” he asked.