Hello people.
As far as my understanding goes, Dhammā is a Mano sense object and Dhamma is the teaching of the Buddha.
But I am getting a little confused when I read some suttas.
In Mahasatipatthana Sutta – The Great Discourse on the Establishing of Awareness when the Buddha talks about the sense objects, both Dhamma and Dhammā are used.
Here is Dhammā:
Dhammā loke piyarūpaṃ sātarūpaṃ, etthesā taṇhā uppajjamānā uppajjati, ettha nivisamānā nivisati.
And here is Dhamma:
Dhammasaññā loke piyarūpaṃ sātarūpaṃ, etthesā taṇhā uppajjamānā uppajjati, ettha nivisamānā nivisati.
Dhammasañcetanā loke piyarūpaṃ sātarūpaṃ, etthesā taṇhā uppajjamānā uppajjati, ettha nivisamānā nivisati.
Also in the Vb 6: Paṭiccasamuppādavibhaṅga—Mahāsaṅgīti Tipiṭaka Buddhavasse 2500 the mental object is mentioned as Dhamma:
Tattha katamā vedanāpaccayā taṇhā? Rūpataṇhā, saddataṇhā, gandhataṇhā, rasataṇhā, phoṭṭhabbataṇhā, dhammataṇhā—ayaṁ vuccati “vedanāpaccayā taṇhā”.
I would assume it’s with short a because the words are concatenated, but I am not sure.
So my question is: Why are both words used?