Musar for Pesachim 211:13

אמר רב ברונא אמר רב

Let us see, he reasoned, for all blessings [of kiddush] we first say '. who createst the fruit of the vine'<span class="x" onmousemove="('comment',' Hence it would be fitting for that to be called the Great kiddush, since it is recited on every occasion.');">¹²</span> [So] he recited'. who createst t fruit of the vine,' and tarried over it,<span class="x" onmousemove="('comment',' He paused before drinking it in order to see whether this was deemed sufficient for the kiddush by day.');">¹³</span> [and then] he saw an old man bend [his head] and drink. Thereupon he applied to himself [the verse], The wise man, his eyes are in his head.<span class="x" onmousemove="('comment',' Eccl. II, 14.');">¹⁴</span> The sons of R'Hiyya Said: He who did not recite habdalah at the termination of the Sabbath proceeds to recite habdalah anytime during the week. And, until when? -Said R'Zera: Until the fourth day of the week.<span class="x" onmousemove="('comment',' Exclusive. From the fourth day onward the days are counted with the following Sabbath, and it would be inappropriate to recite habdalah then for the preceding Sabbath.');">¹⁵</span> Even as R'Zera sat before R'Assi - others state, R'Assi sat before R'Johanan - and he sat and stated: In respect to divorces the first day of the week, the second, and the third [are defined as] after the Sabbath; the fourth, the fifth, and the eve of the [Sabbath] day [rank as] before the Sabbath.<span class="x" onmousemove="('comment',' E.g., if a man divorces his wife on condition that she performs a certain acton after a particular Sabbath, it must be done not later than the third day following; if he stipulates, before the Sabbath, Wednesday, Thursday, or Friday are meant.');">¹⁶</span> R'Jacob B'Idi said: But [he does] not [recite a blessing] over the light.<span class="x" onmousemove="('comment',' When he recites habdalah later in the week. Rashbam: the reason is presumably because the blessing for light can be recited only at the termination of the Sabbath (v. supra 54a) , since it was then created for the first time.');">¹⁷</span> R'Beruna said in Rab's name:

Shenei Luchot HaBerit