During his first stint in England with the Blues, Salah was less than successful and went on to score just two goals in 13 League appearances before leaving to join Fiorentina on loan in 2015.
Lampard believes that Salah's decision to go to Italy played a role in his success with Liverpool this season.
"There shouldn't be too much finger pointing [at Chelsea]," Lampard told BT Sport.
"I was there with Salah, he was young.
"It was probably an early stage in his career, it didn't work for him, he went away and did well.
“(Kevin) De Bruyne was in the same situation.
“It's very hard - Chelsea had an abundance of talent in those positions at that time.
“So I'd rather focus on the player. Credit to them for going away, working hard and coming back.