The Bag/Pouch
Scholars have said that seeing a bag around one's waist may indicate the dreamer's return to a sound source of knowledge. If it contains whole dirhams, it is correct knowledge, and if broken, the knowledge needs study. Abu Bakr Al-Siddiq interpreted the bag as the human body and dirhams as remembrance and speech.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam