Midrash su Salmi 49:11

(Fol. 40) Resh Lakish sold himself to the Lyddians. He took along with him a bag containing a piece of lead. He said to himself: "I am aware that on the last day before they execute a person the Lyddians are ready to fulfill all the desires of that man who is to be executed, so that he should forgive them for the crime of shedding his blood." When it came to the last day, when Resh Lakish was about to be executed, they said to him: "What is your desire, we shall do for you?" "I want to tie you and set you down and to everyone of you I shall give one and one-half blow. Agreeing to this suggestion he tied them, set them down, and when he had given one blow to each one of them [with that bag filled with lead,] they remained senseless, gritting with their teeth upon Resh Lakish. Whereupon Resh Lakish remarked: "You are yet laughing at me, there is still one-half blow coming to you." He killed everyone of them and freed himself. He then came out, sat down and partook of a good meal. When his daughter said to him: "Won't you sit down on something soft?" he said to her: "My own body is the best pillow." At the time when he was dying he left a Kab of safron, and he applied to himself the following passage (Ps. 49, 11) And leave to others their wealth.