FAUSTUS: Stay, Mephistopheles, and tell me,
What good will my soul do thy lord?

MEPHISTOPHILES: Enlarge his kingdom.

FAUSTUS: Is that the reason he tempts us thus?

MEPHISTOPHILES: Solamen miseris socios habuisse doloris.
[Misery loves company.]

Christopher "Kit" Marlowe (1564–1593) English dramatist and poet

The Tragicall History of the Life and Death of Doctor Faustus, Act 2, sc. 1 (sc. 5), l. 477ff (1594; 1604 “A” text)
    (Source)

Variants of the Latin translation:

• It is a comfort to the wretched to have companions in misery.
• It is a comfort to the unfortunate to have had companions in woe.
• To the unhappy it is a comfort to have had company in misery.
• Solace of the wretched to have companions of pain.

The same wording is used in the "B" text (1594; 1616), l. 427ff.