asSalaamu Alaikum,

رسالة المسترشدين – لإمام الحارث المحاسبي

تحقيق و تخريج لشيخ عبد الفتاح أبو غدة

الرعاية لحقوق الله – لإمام الحارث المحاسبي

The works by Imam Harith al-Muhasibi (ra), the teacher of Shaykh Junaid al-Baghdadi (ra), are considered to be amongst the earliest treatises on Tasawwuf. Imam al-Muhasibi (ra) was born in Basra during 2nd century Hijri. The renowned research & Hadith scholar Shaykh Abdul Fattah Abu Ghuddah (ra) did the tahqeeq and takhrij of the treatise Risalat al-Mustarshideen which is attached above.