They were said to be family friends and it is feared Hostey may have helped radicalise Abedi.
It is believed that Ismail, who worked as a teaching assistant giving Arabic classes and IT support at Didsbury mosque Quran school, was once reported to a counter- terrorism unit after concerns were raised by members of the Muslim community.
Abedi and his family were well known at their Didsbury Mosque just a few minutes’ drive away from their modest £150,000 home.
Last night a source suggested anti-terror officers also tried to engage with Abedi, but he refused to co-operate.
‘Salman Abedi is a troublemaker, that is the understanding we have from the community,’ he said.
Although Abedi was known to the security services, he was not under surveillance and officers had no inkling he was building a bomb.