Umrah bint Hayyan Sahmiyyah said: Umm al-Mu’minin Sayyidah Aisha (may Allah be pleased with her) said to me: Is there anyone among you who, after becoming pure from menstruation, cannot afford to use the incense of al-Qist? If she cannot afford it, then [she should use] al-As; if she cannot afford that either, then she should use some date pits or even just salt for incense.