Ajahn Brahmali discusses sutta 61 from Majjhima Nikaya: Ambalatthikarahulovada Sutta, "Advice to Rahula at Ambalatthika".
"Using the “object lesson” of a cup of water, the Buddha explains to his son, Rāhula, the importance of telling the truth and reflecting on one’s motives," Sutta Central.
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