The Celtic striker reached the landmark in his 53rd appearance of the season against St. Johnstone on Wednesday night.
Celtic striker Leigh Griffiths has told reporters, as quoted by the club's official Twitter account, that he never thought he could reach 40 goals in a season but admitted he will "cherish" being mentioned in the same breath as Bhoys legend Henrik Larsson.
The 25-year-old netted his 40th of the campaign in just his 53rd appearance in all competitions at St. Johnstone on Tuesday night, although the much-changed champions eventually lost 2-1.
Griffiths has now become the first Hoops player to reach the landmark in a single season since Larsson 12 years ago, when the legendary Swedish striker took 58 matches to hit 41.
The current Celtic leading man admitted that he could never have imagined replicating the feat at the start of the season after scoring 20 in his first full season at the club last campaign, but expressed his pride at the fact he will now be mentioned in the same sentence as Larsson.
Griffiths said, as quoted by the club's official Twitter account: "In my wildest dreams I wouldn’t have thought I’d get 40 goals but I’ll keep going. You can never really set targets. All I wanted this season was consistency and a run in the team.
"To get mentioned in the same breath as players like Larsson is something I’ve got to cherish. I’ve got another five years and if I can keep this form for the next five I’ll be happy."
Despite Griffiths achieving his personal target, Celtic suffered just a fourth league defeat of the season as outgoing manager Ronny Deila rotated his squad in his penultimate match in charge.
The striker has one more game to add to his tally for the season and match Larsson's 41 when the Hoops host Motherwell on the final day of the season on Sunday.