A disbeliever works with us, and I constantly treat him well, shake his hand, and let him eat with me. Is that considered loyalty?

Question:
May Allah reward you, Honorable Shaykh. This questioner says: Honorable Shaykh, a disbeliever works with us, and I always treat him well, so I shake his hand, let him eat with me, and invite him to Islam. Is my kindness toward him considered loyalty to him?

Answer:
Treating him well and not transgressing against him is obligatory. It is not permissible to transgress against disbelievers without right. It is not permissible to transgress against them, and there is no harm in eating with them, provided it is not habitual and not if it happens that food is served and you gather around it with a disbeliever or disbelievers present. There is no harm in that. What is prohibited is making this a habit, where they become your regular companions and you constantly eat and drink with them.
As for if this is a matter of chance or only during work hours, there is no harm in that. As for shaking hands, if he extends his hand to you or greets you, you return the greeting. But if you are the one to initiate it, no. The Prophet (peace and blessings be upon him) said: Do not initiate the salam to the Jews and Christians, and if they greet you, say "And to you." Yes.