According to Osho, no: sannyasins will not write any constitution - constitutions belong to power-seeking politics and preserve divisions. His movement aims to dissolve all such boundaries. And even hypothetically, your phrase cannot be an oath; 'going to' postpones awareness. His teaching is immediacy: squeeze the juice of this moment now, act first, then speak - otherwise the moment is already gone.
No—he rejects constitutions, and the phrase is wrong because it postpones living; just squeeze the moment now.