Rashi on Leviticus 16:14/רש"י על ויקרא ט״ז:י״ד

1והזה באצבעו AND HE SHALL SPRINKLE IT WITH THE FINGER — One sprinkling only is implied (since the next phrase mentions a definite number),

2ולפני הכפרת יזה שבע AND BEFORE THE COVERING SHALL HE SPRINKLE [OF THE BLOOD] SEVEN TIMES — Thus we have one sprinkling upwards and seven downwards (Yoma 53b).