The club, according to reports in today's Lincolnshire Echo, are running the rule over the 22-year old, with whom Director of Football John Deehan helped develop during his time at the Galpharm Stadium.
Ahmed suffered a broken metatarsal in pre-season and his appearances have been limited so far this campaign, featuring only twice for the League One outfit. In his last game, he was sent off and is currently serving a three-match ban, which runs out this weekend.
This could, however, open doors for the Imps' to swoop.
"At the moment, he's just training with us" explained Deehan, speaking to the Echo earlier today.
"We have spoken to Terriers boss Peter Jackson and were given the chance to invite him down to train with us for a bit.
"We think it's only fair he has the chance to look at the facilities and let him know what the squad is like."
Both Deehan and manager, John Schofield will be watching Ahmed very carefully as they continually aim to improve the squad.
The two-prong management team insist, however, that they will not be rushed in to signings.
"We have until the end of the month to do that and we know time is starting to tick away. However, we are not going to be forced into any panic signings," said Deehan.
For more news of the club's transfer activity, be sure to check back to LCM throughout the remainder of January.