Musannaf Ibn Abi Shaybah 6186 — A pregnant woman who sees blood: does

Ayyub said: I wrote to Nafi' asking him about a pregnant woman who sees blood. He replied: I asked Sulayman bin Yasar: If she sees blood outside the state of menstruation and postnatal bleeding, what should she do? He said: She should take a ritual bath, bind herself with a cloth to hold back the blood, and pray.