Musannaf Ibn Abi Shaybah 8287 — Those who permitted a woman

Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: A woman with istihadah (irregular bleeding) should delay the Zuhr prayer and pray Asr early, joining the two together, and take one ritual bath for both. She should delay Maghrib and pray Isha early, and take one ritual bath for both; and then she should take a ritual bath for the Fajr prayer.