5. Muḥammad ibn Ḥasan ibn Aḥmad ibn Walīd narrated to me from Muḥammad ibn Ḥasan Al-Saffār, from Muḥammad ibn Ḥusain ibn Abil Khaťťāb, from Safwān ibn Yaḥyā, from Isḥāq ibn ‘Ammār, who said: I asked Abal Ḥasan (Imam Kāżim عليه السلام), “May I sacrifice myself for you! Can I establish voluntary prayers in the two Ḥarams and next to the grave of Ḥusain عليه السلام if I am a Muqassir?” Imam عليه السلام replied, “Yes, as much as you can.”