Kohelet Rabbah 9:7

Of Abba Tahna (or Tehinna) the Pious (Hasida) the following story is told in Midrash, Koheleth Rabba, IX, 7: He came back to town with his heavy bundle upon his shoulder, on a Friday afternoon, shortly before the beginning of the Sabbath, when he met a disease-stricken man unable to move, who asked him to have pity on him and bring him into town where he could be attended to. He pondered for a while whether he could afford to lay down his bundle, containing the provisions for his house-hold for the Sabbath and attend to the sick man, thereby leaving his people without food, or whether he should provide for his household and leave the unfortunate man in his perilous condition. He decided to aid the sick man, and after he had brought him to a safe place, he went back to get his bundle. Meanwhile it had grown dark. The Sabbath had approached, and people who saw him carrying his bundle on his shoulder, wondered, saying: "Is this father Tahna the pious?" He felt conscience- stricken at having violated the sanctity of the Sabbath, when a miracle happened. The sun came forth shining again, and a voice was heard saying: "Go, eat your bread in joy, and drink your wine with gladness of heart, for God has accepted favourably your work." Here again the title Abba was a tribute given by the people to the saint. [Soncino Translation]