It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Holy Prophet (peace and blessings be upon him) said: There are four things from the time of ignorance that people will never abandon: finding fault in lineage, wailing over the dead, attributing rain to the stars, and considering disease to be contagious. If a camel becomes afflicted with mange and it infects a hundred other camels, then who afflicted the first camel with mange?