Although one may conquer all of the other senses, as long as the tongue is not conquered it cannot be said that one has controlled his senses. However, if one is able to control the tongue, then one is understood to be in full control of all the senses.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तावज्जितेन्द्रियो न स्याद्विजितान्येन्द्रियः पुमान् । न जयेद्रसनं यावज्जितं सर्वं जिते रसे
tāvajjitendriyo na syādvijitānyendriyaḥ pumān | na jayedrasanaṃ yāvajjitaṃ sarvaṃ jite rase
SB 11.8.21