There are cases in which a law can be suspended, not revoked. For instance, there was a ruling on cow slaughter by Ayatollah Khoi. Religious Hindus in India were asking Muslims not to slaughter Cows. The Shias referred the matter to Khoi. He more or less said that “what Allah has made halal I cannot make haram, but if you fear that by slaughtering cows it will lead to violence and a loss of life it is better to avoid it.”