It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them), a woman wrote to him that she had been suffering from istihada (non-menstrual bleeding) for such and such days, and she had heard that Sayyiduna Ali (may Allah be pleased with him) had said that such a woman should perform ghusl for every prayer. Sayyiduna Ibn Abbas (may Allah be pleased with them) said: Apart from the statement of Ali, we do not find any concession for you.