Halakha Mazmur 121:1: Mishneh Torah, Fasts

And the prayer leader begins and prays until, "Who redeems Israel" (the seventh blessing of the daily Amidah prayer). He [then] says the Remembrances and the Shofarot similar to the trouble. And he [also] says, "In my distress I called to the Lord and He answered me" (Psalms 120:1); "I will lift up my eyes to the mountains, etc." (Psalms 121:1); "Out of the depths I have called You, O Lord" (Psalms 130:1); [and] "A prayer of the afflicted, when he faints” (Psalms 102:1)."