Examining if Hayd (menses) has Ended or Not

4. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from ibn Mahbub from abu Hamzah who has said the following: “Once it was mentioned before Abu Ja‘far عليه السلام, that women, during the night, asked for a lantern to examine if blood discharge has stopped or not; and it was considered laughable. He (the Imam) said, ‘When did women do this?”’ (Meaning the proper test is with a piece of cotton)