Trường Bộ Kinh (Digha Nikaya) 1:487
SUJATOEvampi kho āyasmā ānando bhagavatā oḷārike nimitte kayiramāne oḷārike obhāse kayiramāne nāsakkhi paṭivijjhituṁ;
But Ānanda didn’t get it, even though the Buddha dropped such an obvious hint, such a clear sign.