Genesis 31:22

But after Jakob had gone, the shepherds went to the well, but found no water; and they waited three days, if that it might (again) overflow; but it overflowed not; and then came they to Laban on the third day, and he knew that Jakob had fled; because through his righteousness it had flowed twenty years.

ON THE THIRD DAY. For there was a journey of three days between them. Seven days’ journey— throughout these three days during which the messenger had travelled to tell Laban that Jacob had proceeded on his journey, Jacob was consequently a six days’ journey distance from Laban. On the seventh day, [that is, on the day during which Jacob covered the stretch of ground which made him seven days’ journey distance from Laban’s starting point, Laban] overtook him. We may thus infer that the entire distance which Jacob covered in six days, Laban covered in one day. These are the words of Rashi quoting Bereshith Rabbah. It is correct that Laban should proceed as a strong man to run his course, for such is the way of pursuers. However, Laban had set a three days’ journey between his flock and the flock which was in Jacob’s care, not between the city and his flock. Thus if Laban tended his flocks to the east of the city, Jacob did so to the west, and between them there was a three days’ journey. Now Jacob began his journey from the city, in which were his wives, sons and daughters, and all his belongings with the exception of the flocks. The fact of his flight was told to Laban on the third day since they were not aware of it on the first day, and then Laban returned to his nearby city and took his brethren from there, and starting from his city he pursued him for seven days. [Hence, it should have been said that what Jacob covered in ten days Laban covered in seven days!] We must say then, according to the opinion of Bereshith Rabbah, that it was from the field where the flocks were that Jacob left for the journey, and that Laban took his brethren with him from the shearers of his flocks. [Since there was a three days’ journey between them at the outset and Jacob had already travelled for three days, they were thus six travel days apart. On that day Laban was informed, and the following day he pursued him and overtook him. Jacob meanwhile had covered an additional day’s distance, with the result that the distance Jacob travelled in seven days, Laban covered in one day].
In Pirkei d’Rabbi Eliezer it appears that Laban returned to his city, and from there he took all mighty men and all valiant ones, and he pursued Jacob from there.

ויגד...ביום השלישי, we explained this construction vayugad in 27,42.