사무엘상 1:32의 Tosefta

Yochanan ben Dahavei says in the name of Rabbi Yehuda, Neither is a blind man [obligated to appear at the Temple on the Festivals], as it says (Ex. 23:17), "[All of your males] shall be seen," this excludes the blind. Rebbi answered the words of Yochanan ben Dahavei: The Sages decided to support the opinion of (סִיעַ) Rabbi Yehuda [in reliance upon] (1 Sam. 1:22), "Hannah did not ascend, because she said to her husband, 'When the child is weaned, [I will bring him, that he may appear before the Lord]." [Just as a minor is not obligated until he can ascend independently, so too a blind person, who requires support to ascend the Temple, is not obligated to appear (see Chag. 6a:3).]

I would have thought that [a person] should pray [Shmoneh Esreh] in a loud voice. [However] it explains by Chana, “and Chana was talking in her heart…” (I Samuel 1:13) I would have thought [a person] may pray all [three Shmoneh Esreh] in one shot. [However] it explains by David, “Evening, and morning, and afternoon…” (Psalms 55:18) Evening that is the Maariv prayer, morning that is the Shacharit prayer, and afternoon that is the Mincha prayer. I would have thought that [first a person] should ask for his [personal] needs and then he [should] pray [the established text of Shmoneh Esreh] and go away [from standing in front of God]. [However] it explains by Shlomo, “… to hear the song and the prayer …” (I Kings 8:28) Song that is the song,4 prayer that is the request. And so it says, “Sing before Hashem…” (Psalms 33:1)