I asked him about a man who guarantees (takes responsibility for) another man's presence until a specified time, and if he does not bring him, he will owe such-and-such amount of dirhams. Imam (as) said: "If he brings him by the specified time, then he is not liable for what he mentioned, and he remains a guarantor for his presence indefinitely unless he begins with the dirhams. If he begins with the dirhams, then he is liable for them if he does not bring him by the specified time he had set."