I need help reading the footnotes from the following passage in the book Satipatthana, and finding the suttas which they reference.
in one instance at least, the Upakkilesa Sutta, the Buddha gave a detailed account of his own struggle to attain the first absorption.41 This passage leaves no doubt that the Buddha himself encountered considerable difficulty when he attempted to attain the first absorption, even though in his early youth he had already once experienced it.
Analayo. Satipatthana (Kindle Locations 1196-1199).
Footnote 41 says
M III 162, where only after having consecutively overcome a whole series of mental obstructions (cf. in detail page 199, footnote 73) he was able to attain the first jhāna. Cf. also A IV 439, which reports his struggle to overcome sensuality in order to be able to develop jhāna.
What sutta does
M III 162 reference? (as Majjhima Nikaya contains 152)
And footnote 42 says
M I 246. Possibly his ability to enter the first jhāna so easily at this particular moment during his early youth was related to samatha practice undertaken in a previous life, an ability lost during his adolescence and later sensual indulgence as a young man, so that he had to develop it anew.
To what does
M I 246 reference?