Midrash su Salmi 125:1

(Ib. b) Ulla and R. Chisda were once traveling together, when they came up to the gate of the house of R. Chana b. Chanilai; R. Chisda looked at it, became faint and sighed, "Why sighest thou?"' asked Ulla; "since as Rab said, sighing breaks half of a body, for it is written (Ezek. 21, 11.) Sigh, therefore, O son of man, with the breaking of thy loins, etc.; and R. Jochanan said: 'A sigh breaks up the entire body, for it is said (lb. ib. 12.) And it shall be when they say unto thee, "Wherefore sighest thou? that thou shalt answer, for the tidings, because it cometh, and the whole heart shall melt,'" etc. To this R. Chisda replied: "How can I help sighing over this house, where sixty bakers used to he employed during the day, and sixty during the night, to bake bread for the poor and the needy; and R. Chana always had his hand in his purse, for he thought a respectable poor man might come along, and while he would put his hand in his purse [to take out a coin] it might cause the poor man shame [for being compelled to apply for charity]; besides, he kept four doors open, one facing each direction, and whoever entered hungry went cut satisfied. Moreover in time of famine he scattered wheat and barley outside, so that those who were ashamed to take help openly by day might come and take it by night; and now his house has fallen into ruin. Should I not sigh?" So Ulla said to him, "Thus R. Jochanan said: 'Since the destruction of the Temple it was decreed that the houses of the righteous shall become ruins, for it is written (Is. 5, 9.) Truly many houses shall become desolute. Yea, great and beautiful ones without an inhabitant!' 'Still,' added Rabbi Jochanan, 'the Holy One, praised be He! will again people it, for it is written (Ps. 125, 1.) Those who trust in the Lord are like Mt. Zion. Just as the Holy One, praised be He! is ready to rebuild Mt. Zion so will the Holy One, praised be He! rebuild the houses of the righteous.'" Ulla noticed that R. Chisda was still not comforted. He said to him therefore: "It is sufficient for the slave to have as much as his master [but not more]."