Qur'an, 53: 49, a reference to Allah being "The Lord of Sirius" is mentioned. To Christians who think of God as omnipotent, they will assume this is just an acknowledgement of Allah's power.
However, this is a very purposeful reference that would be commonly understood by peoples of the time. Sufi mystics knew of this connection and that's part of the reason many Muslims discount Sufism as a sort of "hippie mystic" version of Islam. However, it may be representative of its truest origin. Some of that Islamic record was destroyed when Salafists purposefully targeted and took down the Timbuktu site, claiming it was simply about idol worship. However, they also destroyed the gates of Baal, often thought to be the original entrance to Solomon's Temple, as well. As we know, "Salman" is a translation of "Solomon". So who is paying to have these sites of ancient knowledge about Islam, destroyed?
Sirius is also recognized as ruled by Lucifer by Luciferians, as well as Jewish Kabbalah mystics who consider the Star of Ishtar to represent more than just the planet Venus, as it was later associated with but the channeling of Lucifer and his fallen ones. The Star of Ishtar originated in Iraq.