Hey {{first_name}},
I am [[your_name]], a recruiter at {{company}}. We are hiring for the [[job]]. I have been going through my network and found out you to be the best candidate.
I also found out that [[connection]] is a close friend of yours - he suggested that you as a candidate would be a great fit.
Would you be interested to grab a coffee and take it further? I will make sure [[connection]] comes along as well.
Best,
[[signature]]