Guru Nanak in Baghdad
After having travelled to Madina, Guru Nanak Dev soon arrived in Baghdad and took up a position, along with Mardana, outside the city. Guru Nanak Dev ji shouted the call to prayer, on which the whole population became wrapt in silent astonishment – the Guru omitted the usual words Muhammad ar Rasul Allah, and substituted Arabic words of a similar sound to express his own ideas, hence the astonishment.
In Iraq, it is said that "Even today there are several disciples of Guru Nanak in Iraq. These people live on the banks of the Tigris river, particularly in the cities of Al Kut and Baghdad. They are called Sobi and generally they are gold-smiths by occupation. They are experts in their trade. They keep long hair and do not cut their beards and remember the Guru by names of Baba Nanak or Baba Nana."