Follow-up: Is it permissible to resort to man-made laws to recover rights?

The Shaykh : If we do not find a court that rules by the Shari'ah and our rights are about to be lost, then we resort to them, not on the basis that their ruling is the Shari'ah, but rather we treat them as a condition to extract our rights. Note this qualification: one does not resort to them on the basis that their ruling is the Shari'ah, but as if they are a condition that takes our rights. There is no harm in resorting to them to extract one's right. However, if they rule in one's favor with something that is invalid according to the Shari'ah, it is not permissible to take it. This is not permissible, because it is not possible to let people's rights be lost on the pretext that these people rule by law and one does not find a resort to other than Allah and His Messenger. We say: Yes, I do not resort to them on the basis that their word is a final decision and ruling, but I resort to them on the basis that they are a condition that extracts my right, or I extract my right through them. End. Now, what comes after this?

The questioner : May Allah reward you. Shaykh, what is the ruling on fasting on Saturday alone?

The Shaykh : What?