Complex sentence: In the caliphate of Harun al-Rashid the Imam was also repeatedly subject to suspicions, one of which aroused from the situation where the Imam and Harun were together before the tomb of Muhammad.
Split into simpler sentences: In the caliphate of Harun al-Rashid, the Imam was the object of suspicion. In one such incident, the Imam and al-Rashid were together before the tomb of Muhammad.