Mahāmoggallānasutta
Evaṁ me sutaṁ— ekaṁ samayaṁ bhagavā sāvatthiyaṁ viharati jetavane anāthapiṇḍikassa ārāme. Tena kho pana samayena āyasmā mahāmoggallāno bhagavato avidūre nisinno hoti pallaṅkaṁ ābhujitvā ujuṁ kāyaṁ paṇidhāya kāyagatāya satiyā ajjhattaṁ sūpaṭṭhitāya. Addasā kho bhagavā āyasmantaṁ mahāmoggallānaṁ avidūre nisinnaṁ pallaṅkaṁ ābhujitvā ujuṁ kāyaṁ paṇidhāya kāyagatāya satiyā ajjhattaṁ sūpaṭṭhitāya.
With Mahāmoggallāna
So I have heard. At one time the Buddha was staying near Sāvatthī in Jeta’s Grove, Anāthapiṇḍika’s monastery. Now at that time Venerable Mahāmoggallāna was sitting not far from the Buddha, cross-legged, with his body straight and mindfulness of the body well-established in himself. The Buddha saw him meditating there.