[1] Exodus 20:12; Deut. 5:16
[2] Jerusalem Talmud (Peah 1:1)
[3] Midrash Rabba – Shir HaShirim 4:2;Yalkut Shimoni – Psalms 691
[4] Meshech Chachma and K'tav Sofer (V'etchanan)
[5] Kiddushin 30b
[6] Sefer HaChinuch 33
[7] Exodus 20:12; Deut. 5:16
[8] Leviticus 19:3
[9] Yoreh De'ah 240:4. If the parent has no money for food, the child is responsible to pay (Yoreh De'ah 240:5).
[10] Biur HaGra (YD 240:36)
[11] Aruch HaShulchan (YD 240:36)
[12] Maimonides (Mamrim 6:3); Chayei Adam 67:4
[13] Kiddushin 31b
[14] The Fifth Commandment by Rabbi Moshe Lieber, pg. 90
[15] Sefer HaChassidim 575
[16] Rabbi Y.S. Eliyashiv, cited in Morah Horim V'Kibbudam. In general, the cost of caring for parents is divided between the children, according to the ability to pay (Rema – Yoreh De'ah 240:5).
[17] Talmud – Kiddushin 31a
[18] Exodus 20:12
[19] The Fifth Commandment, pg. 28, citing Rabbi Yosef Chaim Sonnenfeld
[20] Ohr HaChaim (Leviticus 19:3)
[21] Chayei Adam 67:3
[22] Sefer HaYirah – s.v. U'Me'od Yesh
[23] Chayei Adam 67:1
[24] Rabbi Chaim Shmuelevitz (Sichot Mussar 5731:22)
[25] Rabbi Noah Weinberg, 48 Ways to Wisdom (#32)
[26] Ha'emek Davar (Deut. 5:16)
[27] Yoreh De'ah 240:6
[28] Yoreh De'ah 240:7. The Ashkenazi practice is to stand for a parent once in the morning and once in the evening (Rema – Yoreh De'ah 242:16). Sefardim stand every time a parent enters the room (Birkei Yosef – YD 242:21).
[29] Yoreh De'ah 240:4
[30] Yoreh De'ah 240:15, based on Leviticus 19:3 with Rashi. This includes posthumous requests, such as to cremate the parent's body (Achiezer 3:72, based on Maimonides – Avel 12:1), or not to say Kaddish (Yabia Omer, vol. 6 – YD 31:4).
[31] The Fifth Commandment, pg. 127
[32] Aruch HaShulchan (YD 240:41); Beit Lechem Yehuda (YD 240:15). Birkei Yosef (YD 240:10) limits this to things that are life-threatening.
[33] Rema – Yoreh De'ah 240:25
[34] Yoreh De'ah 240:13, 25
[35] Mabit 1:139. However, Binat Adam (based on Tashbatz 3:288) contends that with regard to moving to Israel, parents' wishes must be respected.
[36] Yoreh De'ah 240:2
[37] Yoreh De'ah 240:2
[38] Yoreh De'ah 240:11; Aruch HaShulchan (YD 240:33)
[39] Yoreh De'ah 240:2
[40] Chayei Adam 67:8
[41] Yoreh De'ah 240:2
[42] Shu"t Igros Moshe (YD 1:133)
[43] Rema – Yoreh De'ah 240:8, with Taz 10
[44] Rema – Yoreh De'ah 242:16, Even Ha'ezer 23:6
[45] Yoreh De'ah 240:8
[46] Yoreh De'ah 241:6, based on Deut. 27:16
[47] Exodus 21:15, Leviticus 20:9; Yoreh De'ah 241:1 with Rema. All things being equal, a child should avoid administering assistance to a parent that would result in bleeding – e.g. removing a splinter, performing surgery or dental treatment (Yoreh De'ah 241:3).
[48] Yoreh De'ah 240:9
[49] Yoreh De'ah 240:9
[50] Ben Ish Chai (vol. 2, Parshat Shoftim 14)
[51] Sdei Chemed (Ma'arechet Kaf 104)
[52] Talmud - Shabbat 134a; Yalkut Yosef (Kibud Av V'Em 8:5); Yabia Omer (vol. 5 – YD 21, EH 7:7)
[53] Beit Yosef (OC 284); Rema – Yoreh De'ah 249:16
[54] Chayei Adam 67:6
[55] Gesher HaChaim 1:31:1
[56] K'tav Sofer (OC 65)
[57] Talmud – Yevamot 122a, with Rashi; Aruch HaShulchan (YD 376:13)
[58] Kitzur Shulchan Aruch 143:21; Ma'alot HaMidot (Ma'alot Kibud Av V'Em); Kitzur Shulchan Aruch 143:21
[59] Rema – Yoreh De'ah 240:24; Aruch HaShulchan (YD 240:44)
[60] Yoreh De'ah 240:24, with Taz 19. This is learned from Moses honoring his father-in-law, Yitro (Exodus 18:7, Mechilta 18:6).
[61] Yoreh De'ah 240:21
[62] Birkei Yosef (YD 240:17); Gilyon Maharsha (YD 240:22); Pitchei Teshuva (YD 240:19); see Nachmanides to Genesis 32:5, Exodus 15:20
[63] Birkei Yosef (YD 240:18)
[64] Rema – Yoreh De'ah 240:24
[65] Shach (YD 240:22); Yalkut Yosef 14:13
[66] Sefer HaChassidim 574. This can cause parents anguish even after they have passed away.
[67] Yoreh De'ah 240:18, 241:4 (If the parent is an extremely wicked person, a rabbi should be consulted.)v [68] Yoreh De'ah 240:3
[69] Kiddushin 31a
[70] Aruch HaShulchan (YD 240:16, 33); Sefer HaChassidim 343
[71] Yoreh De'ah 240:19
[72] Abarbenel (Parshat Yitro 20:12); Torat HaMincha (Drasha 24)
[73] Maimonides (Mamrim 6:1); Sefer HaChinuch 33
[74] heard from Rabbi Noach Orlowek
[75] Abarbanel (Parshat Yitro 20:12)