The Adhan, Iqama, and Prayer
Scholars have said that seeing oneself calling the Adhan (call to prayer) once or twice, then performing the Iqama (second call to prayer) and offering a mandatory prayer, may indicate that the dreamer will be blessed with Hajj and Umrah. This interpretation is supported by the Quranic verse: {And proclaim to the people the Hajj}.
Per Ibn Sirin's Muntakhab al-Kalam fi Tafsir al-Ahlam