Targum su Levitico 24:12

This is one of four judgments which were brought in before Mosheh the prophet, who decided them by the dictate of the Word, who is above. They were judgments about money and about life. In judgments on money Mosheh was prompt; but in the judgment on life he was deliberate (or slow by delay) each (party) Mosheh said, I have not heard: that he might teach the chiefs of the Sanhedrin of Israel, who were to arise after him, to be prompt in judgments respecting money, but slow in judgments that affected life; and not to be ashamed to inquire for counsel in cases that should be too hard for them, forasmuch as Mosheh, Rabban of Israel, had need to say, I have not heard. Therefore they shut him up in the house of confinement till the time that it should be explained to them by the decree of the Word of the Lord.

This is one of four judgments that were brought before Mosheh our Rabbi. In two of them was Mosheh slow by delay, and in two of them was Mosheh expeditious. With the blasphemer who blasphemed the Holy Name with scoffings and with the gatherer of sticks who profaned the Sabbath, Mosheh had delay, because they were judgments that affected life; but in the case of unclean persons who could not perform the Pascha in its time, and in that of the daughters of Zelophehad, Mosheh could be prompt, because they were judgments on temporal matters. But to those he would say, I have not heard: to teach the judges who were to arise after Mosheh to be slow in judgments on life and to be expeditious in judgments of Mammon; and not to be ashamed to say, I have not heard; for Mosheh our Rabban said, I have not heard. And they shut him up in confinement, while as yet it had not been explained to them from before the Lord with what judgments they were to deal with him.